make IBP35SerialPortStreamFactory disposable

Author: smdn

src/Smdn.Devices.BP35XX/Smdn.Devices.BP35XX/BP35A1.cs

@@ -67,7 +67,9 @@ private BP35A1(
   )
     : base(
       serialPortName: configurations.SerialPortName,
+#pragma warning disable CA2000
       serialPortStreamFactory: serviceProvider?.GetService<IBP35SerialPortStreamFactory>() ?? new BP35A1SerialPortStreamFactory(configurations),
+#pragma warning restore CA2000
       erxudpDataFormat: SkStackERXUDPDataFormat.Binary,
       logger: serviceProvider?.GetService<ILoggerFactory>()?.CreateLogger<BP35A1>()
     )

src/Smdn.Devices.BP35XX/Smdn.Devices.BP35XX/BP35Base.SerialPortStreamFactory.cs

@@ -13,6 +13,11 @@ partial class BP35Base {
   private protected abstract class SerialPortStreamFactory : IBP35SerialPortStreamFactory {
     public abstract BP35UartBaudRate BaudRate { get; }
 
+    public void Dispose()
+    {
+      // nothing to do in this class
+    }
+
     public Stream CreateSerialPortStream(string? serialPortName)
     {
       if (string.IsNullOrEmpty(serialPortName)) {

src/Smdn.Devices.BP35XX/Smdn.Devices.BP35XX/IBP35SerialPortStreamFactory.cs

@@ -1,9 +1,10 @@
 // SPDX-FileCopyrightText: 2024 smdn <smdn@smdn.jp>
 // SPDX-License-Identifier: MIT
+using System;
 using System.IO;
 
 namespace Smdn.Devices.BP35XX;
 
-public interface IBP35SerialPortStreamFactory {
+public interface IBP35SerialPortStreamFactory : IDisposable {
   Stream CreateSerialPortStream(string? serialPortName);
 }

tests/Smdn.Devices.BP35XX/Smdn.Devices.BP35XX/PseudoSerialPortStreamFactory.cs

@@ -11,6 +11,11 @@ public PseudoSerialPortStreamFactory()
   {
   }
 
+  public void Dispose()
+  {
+    // nothing to do in this class
+  }
+
   public Stream CreateSerialPortStream(string? serialPortName)
     => Stream;
 }